user
Write a response that appropriately completes the request.

### Instruction:
Identify a major international problem that people are facing in the 21st century.

### Response:
assistant
One major international problem that people are facing in the 21st century is climate change. The rising average global temperature due to the burning of fossil fuels and other human activities is having a profound impact on the environment, including rising sea levels, species extinction, and droughts, to name a few. These impacts are being felt across the world and will continue to worsen unless drastic action is taken.